For the first time in its 232-year existence as an independent nation, America is fighting a war with a military machine that is dependent on women. More than 200,000 women are on active duty in the U.S. armed services and an additional 150,000 serve in the National Guard and Reserves - an estimated 100,000 of them have served in the Iraq combat theater so far. Women make up 19 percent of the Navy, 15 percent of the Army, 20 percent of the Air Force and 24 percent of the Army Reserve.